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RADVD(8)										 RADVD(8)

       radvd - router advertisement daemon for IPv6

       radvd  [  -vh ] [ -d debuglevel ] [ -C configfile ] [ -p pidfile ] [ -m method ] [ -l log-
       file ] [ -f facility ] [ -t chrootdir ] [ -u username ]

       radvd is the router advertisement daemon for IPv6. It listens to router solicitations  and
       sends  router  advertisements as described in "Neighbor Discovery for IP Version 6 (IPv6)"
       (RFC 2461).  With these advertisements hosts can automatically configure  their	addresses
       and some other parameters. They also can choose a default router based on these advertise-

       Note that if debugging is not enabled, radvd will not start if  IPv6  forwarding  is  dis-
       abled.	IPv6  forwarding can be controlled via sysctl(8), net.ipv6.conf.all.forwarding on
       Linux or net.inet6.ip6.forwarding on BSD.

       Similarly, the configuration file must not be writable by others, and if  non-root  opera-
       tion is requested, not even by self/own group.

       For  every one character option there is also a long option, which is listed right next to
       the "short" option name:

       -v, --version
	      Displays the version of radvd and then aborts.

       -h, --help
	      Displays a short usage description and then aborts.

       -d debuglevel, --debug debuglevel
	      With this option you turn on debugging information. The debugging level is an inte-
	      ger  in  the range from 1 to 4, from  quiet to very verbose. A debugging level of 0
	      completely turns off debugging. If a debugging level greater than 0 is used,  radvd
	      doesn't background itself on start. The default debugging level is 0.

       -C configfile, --config configfile
	      Specifies   an   alternate   config   file.   Normally   the  compiled  in  default
	      /etc/radvd.conf is used.

       -p pidfile, --pidfile pidfile
	      Specifies   an   alternate   pidfile.   Normally	 the	compiled    in	  default
	      /var/run/radvd/radvd.pid is used.

       -m method, --method method
	      Specifies the logging method to use. Possibly values are:

	      none   Completely disables any logging.

		     Logs  to  the  logfile which is specified by the -l option. If no logfile is
		     specified on the command line, then a compiled in default is used (see  next

	      stderr Logs to standard error.

	      syslog Logs to syslog (default method).

       -l logfile, --logfile logfile
	      Specifies  the  logfile  to use when using the logging method logfile.  The default
	      logfile is /var/log/radvd.log.

       -f facility, --facility facility
	      Specifies the facility (as an  integer)  when  using  syslog  logging.  Default  is

       -t chrootdir, --chrootdir chrootdir
	      If specified, switches to chrootdir before doing anything else.  This directory and
	      its subdirectories must have been populated first.  For security reasons,  -u  must
	      always be used when using chrootdir.

	      Note  that  this	option will not currently work under Linux because radvd requires
	      access to the /proc filesystem.

       -u username, --username username
	      If specified, drops root privileges and changes user ID to username and group ID to
	      the  primary  group  of  username.   This is recommended for security reasons.  You
	      might also need to use -p to point to a file  in	a  username  -writable	directory
	      (e.g. /var/run/radvd/radvd.pid).


       There  certainly  are some bugs. If you find them or have other suggestions please contact
       Nathan Lutchansky <lutchann@litech.org> or Pekka Savola <pekkas@netcore.fi>.

       radvd.conf(5), radvdump(8)

       Pedro Roque    <roque@di.fc.ul.pt> - wrote first version for Linux
       Lars Fenneberg <lf@elemental.net>  - previous maintainer
       Pekka Savola   <pekkas@netcore.fi> - current maintainer
       Nathan Lutchansky   <lutchann@litech.org>    - current maintainer
       Craig Metz     <cmetz@inner.net>   - port to NRL's IPv6 code for BSD4.4
       Marko Myllynen <myllynen@lut.fi>   - RFC 2461 update, Mobile IPv6 support

radvd 0.7.2				   29 Mar 2001					 RADVD(8)
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